Caster.



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(Application led May 25, 1899.)

(No Model.)

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UNITED STATES PATENT EEICE.

ALBERT B. DISS, OF NEV YORK, N. Y.

CASTER.

SPECIFICATION forming part of Letters Patent N o. 643,481, datedFebruary 13, 1900.

Application filed May 25, 1899. Serial No. 718,131. (No model.)

To all whom t may concern:

Be it known that I, ALBERT B. Diss, a citi- Zen of the United States,residing in the city of New York, borough of Brooklyn, in the county ofKings and State of New York, have invented a new and useful Improvementin Casters, of which the following is a speciiication.

My invention relates especially to casters adapted to bedsteads andother articles of furniture having tubular legs wherein the tubes extenddown closely to the place where the caster is connected. The casterpasses up into the tubular leg and is frictionally held therein, and thedisk that surrounds the pintle of the caster comes against the end ofthe tubular leg, and in this manner the article of furniture issupported.

In carrying out my invention and in con'- nection with the caster-wheel,the jaws, and the said disk, which surrounds the pintle and upon whichthe tubular leg rests, I employ guides having edges parallel to thepintle, and the guides are connected to the pintle and their paralleledges bear against the inner surface of the tubular leg, so as to centerthe pintle in the tubular leg and hold the caster frictionally thereto.I prefer to employ a spring which presses the said parallel edgesoutward, so as to cause them to bind upon the inner surface of thetubular leg. I further prefer that these guides shall be in the form ofmetal frames, the main portions of which are parallel to each other andto the pintle, the edges of which are also parallel to each other and tothe pintle, and said frames preferably have ends that are at rightangles to the main portion thereof, and in these ends elongated holesare preferably made to receive the pintle, and the ends of saidguideframes preferably lap, and the spring to press the same outwardspans the pintle and is within between the said guide-frames.

In the drawings, Figure 1 is an elevation of the caster-wheel andperspective of the guidefralnes and spring and a section of a portion ofthe tubular leg. Fig. 2 is a vertical section of the same. Fig. 3 is asectional plan at x oc of Fig. 2, and Fig. 4 represents a section andpartial elevation of a modiiication.

The wheel a, jaws c, jaw-top b', pintle c, the disk d, surrounding thepintle and upon which the tubular leg rests, and the tubular leg e areall of well-known and usual forni and do not require furtherdescription. I do not limit myself to the use of the disk d, as thecaster might support the tubular leg and article of furniture in someother manner.

ff' represent the guides having parallel edges 2 bearing against theinner surface of the tubular leg. Each of these guides is preferably inthe form of a frame with two of such edges 2.

The guides are preferably frames of metal having ends 3 approximately atright angles to the main portions of said frames, and in each of saidends 3 there is preferably an elongated hole 4 to receive the pintle c,and the said ends 3 of one frame preferably overlap the similar ends ofthe other guide-frame. I employ a spring acting to force the saidguide-frames outwardly, so as to cause their respective edges 2 to bindagainst the inner surface of the tubular leg. I prefer to employ thespring h, (shown in Figs. 1, 2, and 3,) which spring has a central holefor the pintle and spans the pintle and acts against the two innersurfaces of the guide-frames toV Y' press the same outwardly. It will benoticed in this construction that as the caster is inserted into thetubular leg the parts of the guide-frames are pressed toward one anotherand against the spring action and that the respective edges of saidguide-frames bear against the inner surface of the tubular leg ,to holdthe caster frictionally in place and to maintain the pintle centrally ofthe tubular leg. The upper end of the pintle is upset to form theprojections 5, that hold the frames to the pintle.

In the modification of Fig. 4 I have shown that the springs to operatethe guide-frames lmay be formed from continuations of the ends of therespect-ive guide-frames themselves, the one spring h being turnedupward from the guide-frame f and the other spring h2 turned downwardfrom the guideframe f. These guide-frames are alike, the one beingplaced the reverse of the other, the elongated holes 4 being alsoemployed in the modification the saine as in the other figures. Theaction of these frames is essentially the same as the frames shown inFigs. 1, 2, and 3.

I claim as my invention- IOO l. The combination with the caster-Wheel,the jaws and pintle and a disk surrounding the pintle and upon which thetubular leg rests, of guide-frames secured to the pintle and havingedges parallel to the pintle and bearing against the inner surface ofthe tubulear leg to hold the caster frietionally in place and center thepintle, and means for pressing the parallel edges against the tubularleg, substantially as set forth.

2. The combination with the Caster-Wheel, jaws and pintle and a disksurrounding the pintle and upon which the tubular leg rests, of guideshaving edges parallel to the pintle and to each other and bearingagainst the inner surface of the tubular leg and a spring between saidparallel edges acting outwardly to press them against the inner surfaceof the tubular leg, substantially as set forth.

3. The combination with the caster-Wheel, jaws and pintle and a disksurrounding the pintle and upon which the tubular leg rests, ofguide-frames having portions parallel to each other and to the pintleand having edges parallel to each other and to the pintle and elongatedopenings in the respective ends to receive the pintle, and an internalspring acting outwardly to press the said parallel edges against theinner surface of the tubular leg to center the pintle and to frctionallyhold the caster in place, substantially as set forth.

4. The combination with the caster-Wheel, jaws and pintle and a disksurrounding the pintle and upon which the tubular leg rests,ofguide-frames having portions parallel to each other and ends at rightangles to said main parallel portions with elongated holes in the saidends to receive the pintle, the said guide-frames being similar to eachother With the ends lapping, and said guide-frames having edges that areparallel to each other and to the pintle and an internal spring spanningthe pintle and adapt-ed to press the guide-frames outward and cause theparallel edges thereof to bear against the inner surface of the tubularleg to -center the pintle and to hold the easter frietionally in place,substantially as set forth.

Signed by ine this 23d day of May, 1899.

ALBERT B. DISS.

Witnesses:

GEO. T. PINCKNEY, S. T. IIAvILAND.

